Skip to main content

Demographics

BFS · 2025
Women
2'864 49.3%
Men
2'944 50.7%
Children & youth (0–19)
1'182 20.4%
Swiss citizens
4'040 69.6%
Foreign residents
1'768 30.4%
Population density
784 pop./km²
0–19 · 1'182 · 20.4%20–64 · 3'314 · 57.1%65+ · 1'312 · 22.6%
Foreign residents 30.4%0%64.0%
Population change 2025: +10 (+0.2%) · 54 births · 46 deaths · net migration −1
STATPOP 2025 · Federal Statistical Office (FSO), retrieved 19.09.2026 · swisstopo, retrieved 24.09.2026 · BEVNAT (Statistik der natürlichen Bevölkerungsbewegung) 2025 · Federal Statistical Office (FSO), retrieved 24.09.2026
14.06.2026Amendment to the Civilian Service ActFederal● Accepted · 52.5% YesDistrict Verwaltungskreis Biel/Bienne: 44.6% Yes
54.8% YesNo 45.2%
14.06.2026Popular initiative: 'No to Switzerland of 10 million! (Sustainability Initiative)'Federal● Rejected · 45.2% YesDistrict Verwaltungskreis Biel/Bienne: 39.2% Yes
59.6% YesNo 40.4%
14.06.2026Projektierungskredit für das Kunstmuseum Bern (Sanierung und Ersatzneubau)Cantonal BE● Rejected · 48.2% YesDistrict Verwaltungskreis Biel/Bienne: 52.4% Yes
38.1% YesNo 61.9%
08.03.2026Federal Act on Individual TaxationFederal● Accepted · 54.3% YesDistrict Verwaltungskreis Biel/Bienne: 62.3% Yes
55.1% YesNo 44.9%
08.03.2026Popular Initiative ‘For a fair energy and climate policy: Investing for prosperity, jobs and the environment (Climate Fund Initiative)’Federal● Rejected · 29.3% YesDistrict Verwaltungskreis Biel/Bienne: 37.1% Yes
22.4% YesNo 77.6%
08.03.2026Popular Initiative ‘200 francs is enough! (SBC Initiative)’Federal● Rejected · 38.1% YesDistrict Verwaltungskreis Biel/Bienne: 33.9% Yes
44.8% YesNo 55.2%
08.03.2026Cash Initiative and Counter-Proposal: Deciding QuestionFederal● Rejected · 37.4% YesDistrict Verwaltungskreis Biel/Bienne: 36.5% Yes
43.5% YesNo 56.5%
08.03.2026Federal decree on Swiss currency and cash supply (counter-proposal to Cash Initiative)Federal● Accepted · 73.4% YesDistrict Verwaltungskreis Biel/Bienne: 73.5% Yes
71.9% YesNo 28.1%
All federal votes →
Popular votes (sd-t-17-02) 2026 · Federal Statistical Office (FSO), retrieved 25.09.2026

Politics

National Council election 2023
SVP39.6% · strongest party
SVP39.6%
SP20.8%
FDP9.8%
Mitte8.3%
GLP7.2%
sd-t-17.02-NRW2023 2023 · Federal Statistical Office (FSO), retrieved 25.09.2026
Municipal tax multiplier149%
Cantonal tax multiplier297.5%
149%BE range 89%220%
Tax rank 34 of 334 in canton Bern
Tax burden
Single, 100'000 CHF gross income
16'204 CHF(16.2%)
Rank 32 of 334 in the canton · 1388 of 2110 in Switzerland
Median canton 17'048 CHF · median Switzerland 15'290 CHF
Cheapest Deisswil bei Münchenbuchsee 14'255 CHF · most expensive Schelten 18'510 CHF
Income tax as % of gross income
0%9%18%26%35%40k50k100k150k200k250k300k
100'000 CHF:16'204 CHF(~16.2%)
LengnauCanton range BernSwitzerland median
Show data table
Gross incomeLengnauBernSwitzerland median
40'0009.5%8.3–10.9%5.4%
50'00011.3%9.8–13%7.8%
60'00012.6%11–14.5%10.5%
70'00013.7%12–15.7%11.9%
80'00014.4%12.6–16.5%13.1%
90'00015.2%13.4–17.5%14.1%
100'00016.2%14.3–18.5%15.3%
110'00017%15–19.4%16.3%
120'00017.9%15.8–20.3%17.2%
130'00018.7%16.5–21.2%18.1%
140'00019.4%17.2–22%19%
150'00020.1%17.9–22.8%19.7%
175'00021.9%19.5–24.7%21.6%
200'00023.4%20.9–26.3%23.2%
225'00024.8%22.2–27.8%24.6%
250'00026%23.3–29.1%25.8%
275'00027%24.3–30.2%26.8%
300'00027.9%25.1–31.2%27.4%
2026 · Federal Tax Administration (FTA), retrieved 24.09.2026

Climate

MeteoSwiss 1 km grid · 1991–2020
Annual mean temperature 1991–20209.8 °C
Precipitation 1991–20201'138 mm
9.8 °CCH range -5.5°14°
1991–2020 · MeteoSwiss, retrieved 28.08.2026

Terrain

swisstopo · DHM 40 m
Highest point
1'197 m
Mean elevation
555 m
Relief
773 m
Mean slope
6.9°
Flat share
59.9%
South-facing
28.9%
Above 2000 m
0.0%
Relief 773 m0 m3'847 m

Terrain figures cover the whole municipal territory (swisstopo swissALTIRegio) — not the settlement point. Slope and south-facing share are resolution-dependent and measured at 40 m.

swissALTIRegio 2026 · swisstopo, retrieved 28.08.2026
Roof potential
38.3 GWh/yr
Roofs + façades
51.3 GWh/yr
≈ households powered
8'500
Per inhabitant
6'586 kWh/yr
38 GWh/yr01'133 GWh/yr
BFE solar factsheet ↗

Modelled roof and façade potential from the BFE solar model — the electricity these surfaces could produce, not installed capacity or what the municipality actually generates today. The household figure divides the roof potential by 4'500 kWh per year, ElCom’s reference household (consumption profile H4, a 5-room apartment).

Swiss Federal Office of Energy (SFOE), retrieved 24.09.2026

Electricity

ElCom · 2027
Tariff H4
31.83 Rp./kWh
Energy
13 Rp./kWh
Grid usage
13.83 Rp./kWh
Levies + grid surcharge
3.3 Rp./kWh
31.83 Rp./kWh10.5645.88
Canton median 27.95 Rp./kWhSwiss median 26.53 Rp./kWh
Network operator Einwohnergemeinde Lengnau, Finanzverwaltung, Elektrizität-, Wasser-, Abwasser-, Abfallentsorgung
ElCom tariff comparison ↗
How this is measured

Total household electricity price for ElCom consumption profile H4 — 4'500 kWh a year, a 5-room flat with electric stove and tumble dryer — standard product, excluding VAT, for the tariff year shown. Energy, grid usage, levies to public bodies and the federal grid surcharge are included. Canton and Swiss medians are ElCom's own published figures.

2027 · Federal Electricity Commission (ElCom), retrieved 12.09.2026
Premium regionRegion 2
Standard model, deductible 300612 CHF/mo
Ø premium in canton Bern432 CHF/mo
Estimate Switzerland 2026465.3 CHF/mo

Premiums are set per canton and premium region. This area lies in premium region 2 of canton Bern. Shown is the average adult premium paid across the whole canton Bern (2024, BAG) — a region-specific average is not available in the cantonal data.

2024 · Federal Office of Public Health (FOPH), retrieved 12.09.2026

Housing

BFS · ARE
Vacancy rate
2.18 %
Second homes
11.5 %
Avg. rooms
3.7
Dwellings
2'895
Built before 194616.4%
Built since 200120.9%
2.18 %0 %12 %

Vacancy rate from the BFS vacant-dwelling count (2025); building age and room count from the Buildings and Dwellings Statistics (2024). The average room count treats the ‘6 rooms or more’ class as 6, so it is a slight lower bound. The vacancy rate is volatile for small municipalities.

Buildings and Dwellings Statistics 2024 · Federal Statistical Office (FSO), retrieved 24.09.2026 · Vacant dwellings survey 2025 · Federal Statistical Office (FSO), retrieved 24.09.2026 · Dwelling inventory and second-home share 2026 · Federal Office for Spatial Development (ARE), retrieved 24.09.2026

Economy

BFS · 2024
Jobs
1'876
Workplaces
277
Services share
55.7 %
Jobs by sector: Primary 32 (1.7%) · Secondary 799 (42.6%) · Tertiary 1'045 (55.7%)
STATENT (Statistik der Unternehmensstruktur) 2024 · Federal Statistical Office (FSO), retrieved 24.09.2026

Agriculture

BFS · 2025
Farms
10
Organic share
30 %
Farmland
217 ha
Landwirtschaftliche Strukturerhebung 2025 · Federal Statistical Office (FSO), retrieved 19.09.2026

Accessibility

ARE · NPVM
Major centrePT 69 min · Car 50 min
AgglomerationPT 14 min · Car 10 min
Remoteness 134/334 in canton
National Passenger Transport Model (NPVM) 2025 · Federal Office for Spatial Development (ARE), retrieved 24.09.2026

Municipality

Wikidata · CC0
BFS municipality number387
Wikidata · continuously updated, retrieved 24.09.2026
Largest municipalities5'808 #33 BE · #358 CHGrowing municipalities0.2% #179 BE · #1308 CHShrinking municipalities0.2% #155 BE · #798 CHJobs per resident0.32 #193 BE · #1169 CHFamilies & children20.4% #106 BE · #991 CHAge structure22.6% #197 BE · #739 CHWomen share49.3% #252 BE · #1359 CHForeign residents30.4% #10 BE · #295 CHPopulation density784/km² #33 BE · #310 CHTax burden16'204 #34 BE · #1390 CHTaxes149% #34 BEWarmest municipalities9.8 °C #45 BE · #684 CHSunniest municipalities40.2% #305 BE · #1711 CHRainiest municipalities1'138 mm #173 BE · #877 CHVoter turnout45.1% #307 BE · #2005 CHAgainst Switzerland15% #117 BE · #911 CHAligned with Switzerland85% #82 BE · #509 CHSVP strongholds39.6% #203 BE · #683 CHSP strongholds20.8% #49 BE · #403 CHCentre strongholds8.3% #159 BE · #1402 CHFDP strongholds9.8% #47 BE · #1416 CHGLP strongholds7.2% #176 BE · #709 CHGreen strongholds5.2% #231 BE · #1508 CHLargest by area7.4 km² #184 BE · #1205 CHHighest municipalities445 m #304 BE · #1567 CHSecond homes11.5% #179 BE · #975 CHOrganic farming30% #31 BE · #329 CHBest-connected municipalities69 min #197 BE · #1044 CHRemotest municipalities69 min #134 BE · #1046 CHHighest peaks1'197 m #104 BE · #610 CHHighest-lying municipalities555 m #222 BE · #1189 CHGreatest vertical range773 m #68 BE · #517 CHSteepest municipalities6.9° #199 BE · #1251 CHSolar potential38 GWh #66 BE · #497 CHSolar potential per capita6'586 kWh #306 BE · #1744 CHCheapest electricity31.83 Rp./kWh #309 BE · #1991 CHMost expensive electricity31.83 Rp./kWh #25 BE · #116 CH

Localities

swisstopo · 1
What is the postal code of Lengnau?
The postal code of Lengnau is 2543.
What is the tax rate in Lengnau?
The municipal tax multiplier of Lengnau is 149% (2026); canton BE levies 297.5%.
How much tax do you pay in Lengnau?
A single person without children pays about 16'204 CHF income tax in Lengnau on 100'000 CHF gross income (federal, cantonal, municipal), rank 32 of 334 in canton BE. Source: ESTV (2026).
How many residents does Lengnau have?
Lengnau has 5'808 residents (2025).
How many foreign residents live in Lengnau?
Lengnau has 1'768 foreign residents, a share of 30.44% (2025).

Map

OpenStreetMap